/**
 * @version		2.0
 * @package		Tabs & Sliders (module)
 * @author    JoomlaWorks - http://www.joomlaworks.net
 * @copyright	Copyright (c) 2006 - 2012 JoomlaWorks Ltd. All rights reserved.
 * @license		GNU/GPL license: http://www.gnu.org/copyleft/gpl.html
 */

/* --- Copyright (c) 2006 Patrick Fitzgerald - Version 1.9 --- */

// Set tab options
var tabberOptions = {
	//start on DOM ready
	'manualStartup': true,
	'cookie': "jwts_tabcookie",
	/* Name to use for the cookie */
	'onLoad': function(argsObj) {
		var t = argsObj.tabber;
		var i;
		if (t.id) {
			t.cookie = t.id + t.cookie;
		}
		i = parseInt(getCookie(t.cookie));
		if (isNaN(i)) {
			return;
		}
		t.tabShow(i);
		//alert('getCookie(' + t.cookie + ') = ' + i);
	},
	'onClick': function(argsObj) {
		var c = argsObj.tabber.cookie;
		var i = argsObj.index;
		//alert('setCookie(' + c + ',' + i + ')');
		setCookie(c, i);
	}
};

// Cookie handling
function setCookie(name, value, expires, path, domain, secure) {
	document.cookie = name + "=" + escape(value) + ((expires) ? "; expires=" + expires.toGMTString() : "") + ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + ((secure) ? "; secure" : "");
}

function getCookie(name) {
	var dc = document.cookie;
	var prefix = name + "=";
	var begin = dc.indexOf("; " + prefix);
	if (begin == -1) {
		begin = dc.indexOf(prefix);
		if (begin != 0) return null;
	} else {
		begin += 2;
	}
	var end = document.cookie.indexOf(";", begin);
	if (end == -1) {
		end = dc.length;
	}
	return unescape(dc.substring(begin + prefix.length, end));
}

function deleteCookie(name, path, domain) {
	if (getCookie(name)) {
		document.cookie = name + "=" + ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + "; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
}

// The tabs!
function tabberObj(argsObj) {
	var arg;
	this.div = null;
	this.classMain = "jwts_tabber";
	this.classMainLive = "jwts_tabberlive";
	this.classTab = "jwts_tabbertab";
	this.classTabDefault = "jwts_tabbertabdefault";
	this.classNav = "jwts_tabbernav";
	this.classTabHide = "jwts_tabbertabhide";
	this.classNavActive = "jwts_tabberactive";
	this.titleElements = ['h2', 'h3', 'h4', 'h5', 'h6'];
	this.titleElementsStripHTML = true;
	this.removeTitle = true;
	this.addLinkId = false;
	this.linkIdFormat = '<tabberid>nav<tabnumberone>';
	for (arg in argsObj) {
		this[arg] = argsObj[arg];
	}
	this.REclassMain = new RegExp('\\b' + this.classMain + '\\b', 'gi');
	this.REclassMainLive = new RegExp('\\b' + this.classMainLive + '\\b', 'gi');
	this.REclassTab = new RegExp('\\b' + this.classTab + '\\b', 'gi');
	this.REclassTabDefault = new RegExp('\\b' + this.classTabDefault + '\\b', 'gi');
	this.REclassTabHide = new RegExp('\\b' + this.classTabHide + '\\b', 'gi');
	this.tabs = new Array();
	if (this.div) {
		this.init(this.div);
		this.div = null;
	}
}

tabberObj.prototype.init = function(e) {
	var childNodes, i, i2, t, defaultTab = 0,
		DOM_ul, DOM_li, DOM_a, aId, headingElement;
	if (!document.getElementsByTagName) {
		return false;
	}
	if (e.id) {
		this.id = e.id;
	}
	this.tabs.length = 0;
	childNodes = e.childNodes;
	for (i = 0; i < childNodes.length; i++) {
		if (childNodes[i].className && childNodes[i].className.match(this.REclassTab)) {
			t = new Object();
			t.div = childNodes[i];
			this.tabs[this.tabs.length] = t;
			if (childNodes[i].className.match(this.REclassTabDefault)) {
				defaultTab = this.tabs.length - 1;
			}
		}
	}
	DOM_ul = document.createElement("ul");
	DOM_ul.className = this.classNav;
	for (i = 0; i < this.tabs.length; i++) {
		t = this.tabs[i];
		t.headingText = t.div.title;
		if (this.removeTitle) {
			t.div.title = '';
		}
		if (!t.headingText) {
			for (i2 = 0; i2 < this.titleElements.length; i2++) {
				headingElement = t.div.getElementsByTagName(this.titleElements[i2])[0];
				if (headingElement) {
					t.headingText = headingElement.innerHTML;
					if (this.titleElementsStripHTML) {
						t.headingText.replace(/<br>/gi, " ");
						t.headingText = t.headingText.replace(/<[^>]+>/g, "");
					}
					break;
				}
			}
		}
		if (!t.headingText) {
			t.headingText = i + 1;
		}
		DOM_li = document.createElement("li");
		t.li = DOM_li;
		DOM_a = document.createElement("a");
		DOM_a.appendChild(document.createTextNode(t.headingText));
		DOM_a.href = "javascript:void(null);";
		DOM_a.title = t.headingText;
		DOM_a.onclick = this.navClick;
		DOM_a.tabber = this;
		DOM_a.tabberIndex = i;
		if (this.addLinkId && this.linkIdFormat) {
			aId = this.linkIdFormat;
			aId = aId.replace(/<tabberid>/gi, this.id);
			aId = aId.replace(/<tabnumberzero>/gi, i);
			aId = aId.replace(/<tabnumberone>/gi, i + 1);
			aId = aId.replace(/<tabtitle>/gi, t.headingText.replace(/[^a-zA-Z0-9\-]/gi, ''));
			DOM_a.id = aId;
		}
		DOM_li.appendChild(DOM_a);
		DOM_ul.appendChild(DOM_li);
	}
	e.insertBefore(DOM_ul, e.firstChild);
	e.className = e.className.replace(this.REclassMain, this.classMainLive);
	this.tabShow(defaultTab);
	if (typeof this.onLoad == 'function') {
		this.onLoad({
			tabber: this
		});
	}
	return this;
};

tabberObj.prototype.navClick = function(event) {
	var rVal, a, self, tabberIndex, onClickArgs;
	a = this;
	if (!a.tabber) {
		return false;
	}
	self = a.tabber;
	tabberIndex = a.tabberIndex;
	a.blur();
	if (typeof self.onClick == 'function') {
		onClickArgs = {
			'tabber': self,
			'index': tabberIndex,
			'event': event
		};
		if (!event) {
			onClickArgs.event = window.event;
		}
		rVal = self.onClick(onClickArgs);
		if (rVal === false) {
			return false;
		}
	}
	self.tabShow(tabberIndex);
	return false;
};

tabberObj.prototype.tabHideAll = function() {
	var i;
	for (i = 0; i < this.tabs.length; i++) {
		this.tabHide(i);
	}
};

tabberObj.prototype.tabHide = function(tabberIndex) {
	var div;
	if (!this.tabs[tabberIndex]) {
		return false;
	}
	div = this.tabs[tabberIndex].div;
	if (!div.className.match(this.REclassTabHide)) {
		div.className += ' ' + this.classTabHide;
	}
	this.navClearActive(tabberIndex);
	return this;
};

tabberObj.prototype.tabShow = function(tabberIndex) {
	var div;
	if (!this.tabs[tabberIndex]) {
		return false;
	}
	this.tabHideAll();
	div = this.tabs[tabberIndex].div;
	div.className = div.className.replace(this.REclassTabHide, '');
	this.navSetActive(tabberIndex);
	if (typeof this.onTabDisplay == 'function') {
		this.onTabDisplay({
			'tabber': this,
			'index': tabberIndex
		});
	}
	return this;
};

tabberObj.prototype.navSetActive = function(tabberIndex) {
	this.tabs[tabberIndex].li.className = this.classNavActive;
	return this;
};

tabberObj.prototype.navClearActive = function(tabberIndex) {
	this.tabs[tabberIndex].li.className = '';
	return this;
};

function tabberAutomatic(tabberArgs) {
	var tempObj, divs, i;
	if (!tabberArgs) {
		tabberArgs = {};
	}
	tempObj = new tabberObj(tabberArgs);
	divs = document.getElementsByTagName("div");
	for (i = 0; i < divs.length; i++) {
		if (divs[i].className && divs[i].className.match(tempObj.REclassMain)) {
			tabberArgs.div = divs[i];
			divs[i].tabber = new tabberObj(tabberArgs);
		}
	}
	return this;
}

function tabberAutomaticOnLoad(tabberArgs) {
	var oldOnLoad;
	if (!tabberArgs) {
		tabberArgs = {};
	}
	oldOnLoad = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = function() {
			tabberAutomatic(tabberArgs);
		};
	} else {
		window.onload = function() {
			oldOnLoad();
			tabberAutomatic(tabberArgs);
		};
	}
}
if (typeof tabberOptions == 'undefined') {
	tabberAutomaticOnLoad();
} else {
	if (!tabberOptions['manualStartup']) {
		tabberAutomaticOnLoad(tabberOptions);
	}
}



/* --- Copyright (c) 2005 Alf Magne Kalleland (dhtmlgoodies.com) --- */
var jwSlider = {
	jwts_slideSpeed: 30, 	// Higher value = faster
	jwts_timer: 10,				// Lower value = faster
	
	objectIdToSlideDown: false,
	jwts_activeId: false,
	jwts_slideInProgress: false,
	jwts_expandMultiple: false,
	
	showHideContent: function(e, inputId) {
		if (jwSlider.jwts_slideInProgress) return;
		jwSlider.jwts_slideInProgress = true;
		if (!inputId) inputId = this.id;
		inputId = inputId + '';
		var numericId = inputId.replace(/[^0-9]/g, '');
		var answerDiv = document.getElementById('jwts_a' + numericId);
		jwSlider.objectIdToSlideDown = false;
		if (!answerDiv.style.display || answerDiv.style.display == 'none') {
			if (jwSlider.jwts_activeId && jwSlider.jwts_activeId != numericId && !jwSlider.jwts_expandMultiple) {
				jwSlider.objectIdToSlideDown = numericId;
				jwSlider.slideContent(jwSlider.jwts_activeId, (jwSlider.jwts_slideSpeed * -1));
			} else {
				answerDiv.style.display = 'block';
				answerDiv.style.visibility = 'visible';
				jwSlider.slideContent(numericId, jwSlider.jwts_slideSpeed);
			}
		} else {
			jwSlider.slideContent(numericId, (jwSlider.jwts_slideSpeed * -1));
			jwSlider.jwts_activeId = false;
		}
	},
	
	slideContent: function(inputId, direction) {
		var obj = document.getElementById('jwts_a' + inputId);
		var contentObj = document.getElementById('jwts_ac' + inputId);
		height = obj.clientHeight;
		if (height == 0) height = obj.offsetHeight;
		height = height + direction;
		rerunFunction = true;
		if (height > contentObj.offsetHeight) {
			height = contentObj.offsetHeight;
			rerunFunction = false;
		}
		if (height <= 1) {
			height = 1;
			rerunFunction = false;
		}
		obj.style.height = height + 'px';
		var topPos = height - contentObj.offsetHeight;
		if (topPos > 0) topPos = 0;
		contentObj.style.top = topPos + 'px';
		if (rerunFunction) {
			setTimeout('jwSlider.slideContent(' + inputId + ',' + direction + ')', jwSlider.jwts_timer);
		} else {
			if (height <= 1) {
				obj.style.display = 'none';
				if (jwSlider.objectIdToSlideDown && jwSlider.objectIdToSlideDown != inputId) {
					document.getElementById('jwts_a' + jwSlider.objectIdToSlideDown).style.display = 'block';
					document.getElementById('jwts_a' + jwSlider.objectIdToSlideDown).style.visibility = 'visible';
					jwSlider.slideContent(jwSlider.objectIdToSlideDown, jwSlider.jwts_slideSpeed);
				} else {
					jwSlider.jwts_slideInProgress = false;
				}
			} else {
				jwSlider.jwts_activeId = inputId;
				jwSlider.jwts_slideInProgress = false;
			}
		}
	},
	
	initShowHideDivs: function() {
		var divs = document.getElementsByTagName('div');
		var divCounter = 1;
		for (var no = 0; no < divs.length; no++) {
			if (divs[no].className == 'jwts_title') {
				divs[no].onclick = jwSlider.showHideContent;
				divs[no].id = 'jwts_q' + divCounter;
				var answer = divs[no].nextSibling;
				var divPattern = /div/i;
				while (answer && divPattern.test(answer.tagName)!=true) {
					answer = answer.nextSibling;
				}
				answer.id = 'jwts_a' + divCounter;
				contentDiv = answer.getElementsByTagName('div')[0];
				contentDiv.style.top = 0 - contentDiv.offsetHeight + 'px';
				contentDiv.className = 'jwts_slidecontent';
				contentDiv.id = 'jwts_ac' + divCounter;
				answer.style.display = 'none';
				answer.style.height = '1px';
				divCounter++;
			}
		}
	}

}



/* --- Loader --- */
window.addEvent("domready", function() {
	jwSlider.initShowHideDivs();
    jwSlider.showHideContent(false,2);	// Automatically expand first item - disabled by default
	tabberAutomatic(tabberOptions);
});
